<!doctype html>
<html lang="en">
<head>
    <title>Code coverage report for src/scroll/wheel.js</title>
    <meta charset="utf-8" />
    <link rel="stylesheet" href="../../prettify.css" />
    <link rel="stylesheet" href="../../base.css" />
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <style type='text/css'>
        .coverage-summary .sorter {
            background-image: url(../../sort-arrow-sprite.png);
        }
    </style>
</head>
<body>
<div class='wrapper'>
  <div class='pad1'>
    <h1>
      <a href="../../index.html">all files</a> / <a href="index.html">src/scroll/</a> wheel.js
    </h1>
    <div class='clearfix'>
      <div class='fl pad1y space-right2'>
        <span class="strong">97.67% </span>
        <span class="quiet">Statements</span>
        <span class='fraction'>42/43</span>
      </div>
      <div class='fl pad1y space-right2'>
        <span class="strong">68.97% </span>
        <span class="quiet">Branches</span>
        <span class='fraction'>20/29</span>
      </div>
      <div class='fl pad1y space-right2'>
        <span class="strong">100% </span>
        <span class="quiet">Functions</span>
        <span class='fraction'>6/6</span>
      </div>
      <div class='fl pad1y space-right2'>
        <span class="strong">97.67% </span>
        <span class="quiet">Lines</span>
        <span class='fraction'>42/43</span>
      </div>
    </div>
  </div>
  <div class='status-line high'></div>
<pre><table class="coverage">
<tr><td class="line-count quiet">1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79</td><td class="line-coverage quiet"><span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-yes">1×</span>
<span class="cline-any cline-yes">1×</span>
<span class="cline-any cline-yes">1×</span>
<span class="cline-any cline-yes">1×</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-yes">1×</span>
<span class="cline-any cline-yes">4×</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-yes">1×</span>
<span class="cline-any cline-yes">17×</span>
<span class="cline-any cline-yes">17×</span>
<span class="cline-any cline-yes">17×</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-yes">17×</span>
<span class="cline-any cline-yes">17×</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-yes">17×</span>
<span class="cline-any cline-yes">17×</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-yes">17×</span>
<span class="cline-any cline-yes">1×</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-yes">1×</span>
<span class="cline-any cline-yes">36×</span>
<span class="cline-any cline-yes">36×</span>
<span class="cline-any cline-yes">36×</span>
<span class="cline-any cline-yes">36×</span>
<span class="cline-any cline-yes">36×</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-yes">36×</span>
<span class="cline-any cline-yes">36×</span>
<span class="cline-any cline-yes">19×</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-yes">17×</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-yes">36×</span>
<span class="cline-any cline-yes">17×</span>
<span class="cline-any cline-yes">17×</span>
<span class="cline-any cline-yes">34×</span>
<span class="cline-any cline-yes">17×</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-yes">17×</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-yes">36×</span>
<span class="cline-any cline-no">&nbsp;</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-yes">36×</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-yes">1×</span>
<span class="cline-any cline-yes">17×</span>
<span class="cline-any cline-yes">17×</span>
<span class="cline-any cline-yes">17×</span>
<span class="cline-any cline-yes">17×</span>
<span class="cline-any cline-yes">34×</span>
<span class="cline-any cline-yes">17×</span>
<span class="cline-any cline-yes">17×</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-neutral">&nbsp;</span></td><td class="text"><pre class="prettyprint lang-js">export function wheelMixin (BScroll) {
  BScroll.prototype.wheelTo = function (index = 0) {
    <span class="missing-if-branch" title="else path not taken" >E</span>if (this.options.wheel) {
      const y = -index * this.itemHeight
      this.scrollTo(0, y)
    }
  }
&nbsp;
  BScroll.prototype.getSelectedIndex = function () {
    return this.options.wheel &amp;&amp; this.selectedIndex
  }
&nbsp;
  BScroll.prototype._initWheel = function () {
    const wheel = this.options.wheel
    <span class="missing-if-branch" title="else path not taken" >E</span>if (!wheel.wheelWrapperClass) {
      wheel.wheelWrapperClass = 'wheel-scroll'
    }
    <span class="missing-if-branch" title="else path not taken" >E</span>if (!wheel.wheelItemClass) {
      wheel.wheelItemClass = 'wheel-item'
    }
    <span class="missing-if-branch" title="else path not taken" >E</span>if (!wheel.wheelDisabledItemClass) {
      wheel.wheelDisabledItemClass = 'wheel-disabled-item'
    }
    if (wheel.selectedIndex === undefined) {
      wheel.selectedIndex = 0
    }
  }
&nbsp;
  BScroll.prototype._findNearestValidWheel = function (y) {
    y = y &gt; 0 ? <span class="branch-0 cbranch-no" title="branch not covered" >0 </span>: y &lt; this.maxScrollY ? <span class="branch-0 cbranch-no" title="branch not covered" >this.maxScrollY </span>: y
    const wheel = this.options.wheel
    let currentIndex = Math.abs(Math.round(-y / this.itemHeight))
    const cacheIndex = currentIndex
    const items = this.items
    // Impersonation web native select
    // first, check whether there is a enable item whose index is smaller than currentIndex
    // then, check whether there is a enable item whose index is bigger than currentIndex
    // otherwise, there are all disabled items, just keep currentIndex unchange
    while (currentIndex &gt;= 0) {
      if (items[currentIndex].className.indexOf(wheel.wheelDisabledItemClass) === -1) {
        break
      }
      currentIndex--
    }
&nbsp;
    if (currentIndex &lt; 0) {
      currentIndex = cacheIndex
      while (currentIndex &lt;= items.length - 1) {
        if (items[currentIndex].className.indexOf(wheel.wheelDisabledItemClass) === -1) {
          break
        }
        currentIndex++
      }
    }
&nbsp;
    // keep it unchange when all the items are disabled
    <span class="missing-if-branch" title="if path not taken" >I</span>if (currentIndex === items.length) {
<span class="cstat-no" title="statement not covered" >      currentIndex = cacheIndex</span>
    }
    // when all the items are disabled, this.selectedIndex should always be -1
    return {
      index: this.wheelItemsAllDisabled ? <span class="branch-0 cbranch-no" title="branch not covered" >-1 </span>: currentIndex,
      y: -currentIndex * this.itemHeight
    }
  }
&nbsp;
  BScroll.prototype._checkWheelAllDisabled = function () {
    const wheel = this.options.wheel
    const items = this.items
    this.wheelItemsAllDisabled = true
    for (let i = 0; i &lt; items.length; i++) {
      if (items[i].className.indexOf(wheel.wheelDisabledItemClass) === -1) {
        this.wheelItemsAllDisabled = false
        break
      }
    }
  }
}
&nbsp;</pre></td></tr>
</table></pre>
<div class='push'></div><!-- for sticky footer -->
</div><!-- /wrapper -->
<div class='footer quiet pad2 space-top1 center small'>
  Code coverage
  generated by <a href="http://istanbul-js.org/" target="_blank">istanbul</a> at Mon Apr 15 2019 15:52:39 GMT+0800 (中国标准时间)
</div>
</div>
<script src="../../prettify.js"></script>
<script>
window.onload = function () {
        if (typeof prettyPrint === 'function') {
            prettyPrint();
        }
};
</script>
<script src="../../sorter.js"></script>
</body>
</html>
